[#47787] Ruby Parallelism — Miguel Palhas <mpalhas@...>
Greetings
4 messages
2012/10/01
[#47790] [ruby-trunk - Bug #7097][Open] Thread locals don't work inside Enumerator — "tenderlovemaking (Aaron Patterson)" <aaron@...>
32 messages
2012/10/01
[#47791] [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator
— "kosaki (Motohiro KOSAKI)" <kosaki.motohiro@...>
2012/10/01
[#47792] Re: [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator
— Aaron Patterson <tenderlove@...>
2012/10/01
On Tue, Oct 02, 2012 at 03:05:17AM +0900, kosaki (Motohiro KOSAKI) wrote:
[#47798] Re: [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator
— SASADA Koichi <ko1@...>
2012/10/01
(2012/10/02 3:12), Aaron Patterson wrote:
[#47800] Re: [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator
— SASADA Koichi <ko1@...>
2012/10/01
(2012/10/02 8:22), SASADA Koichi wrote:
[#47802] Re: [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator
— Aaron Patterson <tenderlove@...>
2012/10/02
On Tue, Oct 02, 2012 at 08:32:51AM +0900, SASADA Koichi wrote:
[#47807] Re: [ruby-trunk - Bug #7097][Assigned] Thread locals don't work inside Enumerator
— KOSAKI Motohiro <kosaki.motohiro@...>
2012/10/02
>> For example:
[#48291] [ruby-trunk - Bug #7097] Thread locals don't work inside Enumerator
— "tenderlovemaking (Aaron Patterson)" <aaron@...>
2012/10/25
[#48299] Re: [ruby-trunk - Bug #7097] Thread locals don't work inside Enumerator
— SASADA Koichi <ko1@...>
2012/10/26
I don't have any objection.
[#48300] Re: [ruby-trunk - Bug #7097] Thread locals don't work inside Enumerator
— Aaron Patterson <tenderlove@...>
2012/10/26
On Fri, Oct 26, 2012 at 02:40:53PM +0900, SASADA Koichi wrote:
[#47832] [ruby-trunk - Feature #7106][Open] FileUtils.touch should allow touching the symlink itself rather than the file the link points to — "cirrusthinking (Alessandro Diaferia)" <alessandro@...>
18 messages
2012/10/04
[#47841] [ruby-trunk - Bug #7109][Open] File.utime doesn't set nanoseconds — "bkabrda (Bohuslav Kabrda)" <bkabrda@...>
6 messages
2012/10/05
[#47842] Re: [ruby-trunk - Bug #7109][Open] File.utime doesn't set nanoseconds
— Tanaka Akira <akr@...>
2012/10/05
2012/10/5 bkabrda (Bohuslav Kabrda) <[email protected]>:
[#47847] [ruby-trunk - Bug #7110][Open] CGI: Add support for HTML5 <header> tag — "stomar (Marcus Stollsteimer)" <redmine@...>
16 messages
2012/10/05
[#47880] [ruby-trunk - Bug #7134][Open] Signal handling bug in Mac OS X — "auastro (Andy Kitchen)" <kitchen.andy+rubybug@...>
17 messages
2012/10/10
[#48918] [ruby-trunk - Bug #7134][Assigned] Signal handling bug in Mac OS X
— "mame (Yusuke Endoh)" <mame@...>
2012/11/05
[#47881] [ruby-trunk - Bug #7135][Open] GC bug in Ruby 1.9.3-p194? — "alexdowad (Alex Dowad)" <alexinbeijing@...>
21 messages
2012/10/10
[#47887] [ruby-trunk - Bug #7137][Open] Date.parse overly lenient when attempting to parse Monday? — "garysweaver (Gary Weaver)" <garysweaver@...>
12 messages
2012/10/10
[#47927] new ruby 1.9.3 maintainer — "U.Nakamura" <usa@...>
Hello everyone of the Ruby development community
6 messages
2012/10/12
[#47930] [ruby-trunk - Feature #7148][Open] Improved Tempfile w/o DelegateClass — "Glass_saga (Masaki Matsushita)" <glass.saga@...>
14 messages
2012/10/12
[#47963] [ruby-trunk - Bug #7154][Open] For whatever reason \s doesn't match \u00a0. — "t0d0r (Todor Dragnev)" <todor.dragnev@...>
5 messages
2012/10/13
[#47970] [ruby-trunk - Bug #7158][Open] require is slow in its bookkeeping; can make Rails startup 2.2x faster — "gregprice (Greg Price)" <price@...>
30 messages
2012/10/14
[#48504] [ruby-trunk - Bug #7158] require is slow in its bookkeeping; can make Rails startup 2.2x faster
— "h.shirosaki (Hiroshi Shirosaki)" <h.shirosaki@...>
2012/10/27
[#48505] Re: [ruby-trunk - Bug #7158] require is slow in its bookkeeping; can make Rails startup 2.2x faster
— SASADA Koichi <ko1@...>
2012/10/27
(2012/10/28 7:10), h.shirosaki (Hiroshi Shirosaki) wrote:
[#48728] [ruby-trunk - Bug #7158] require is slow in its bookkeeping; can make Rails startup 2.2x faster
— "tenderlovemaking (Aaron Patterson)" <aaron@...>
2012/11/02
[#48732] Re: [ruby-trunk - Bug #7158] require is slow in its bookkeeping; can make Rails startup 2.2x faster
— Masaya TARUI <tarui@...>
2012/11/02
Thank you for the careful work.
[#48032] [Backport93 - Backport #7174][Open] Advocating for backporting 36811 — "jonforums (Jon Forums)" <redmine@...>
8 messages
2012/10/16
[#48086] [Backport93 - Backport #7174][Assigned] Advocating for backporting 36811
— "usa (Usaku NAKAMURA)" <usa@...>
2012/10/19
[#48040] Should Hash#dup automatically rehash — Aaron Patterson <tenderlove@...>
Hi,
5 messages
2012/10/17
[#48072] [ruby-trunk - Bug #7184][Open] --disable-gems commandline parameter does not show up with ruby -h — "steenslag (siep korteling)" <s.korteling@...>
10 messages
2012/10/18
[#48132] [ruby-trunk - Bug #7201][Open] Setting default_external affects STDIN encoding but default_internal does not — "brixen (Brian Ford)" <brixen@...>
6 messages
2012/10/21
[#48154] Patch to test_ssl to validate server-side support for SNI — Patrick Toomey <ptoomey3@...>
I recently made a pull request to JRuby (
4 messages
2012/10/22
[#48675] Re: Patch to test_ssl to validate server-side support for SNI
— Charles Oliver Nutter <headius@...>
2012/10/31
We have incorporated Patrick's SNI patch for upcoming release JRuby
[#48191] [ANN] 2.0.0 feature freeze — Yusuke Endoh <mame@...>
Japanese later; 日本語は後で
37 messages
2012/10/24
[#48197] Re: [ANN] 2.0.0 feature freeze
— Rodrigo Rosenfeld Rosas <rr.rosas@...>
2012/10/24
Em 24-10-2012 09:39, Yusuke Endoh escreveu:
[#48696] Re: [ANN] 2.0.0 feature freeze
— SASADA Koichi <ko1@...>
2012/11/01
(2012/10/24 5:39), Yusuke Endoh wrote:
[#48701] Re: [ANN] 2.0.0 feature freeze
— Yusuke Endoh <mame@...>
2012/11/01
Hello ko1,
[#48712] Re: [ANN] 2.0.0 feature freeze
— Marc-Andre Lafortune <ruby-core-mailing-list@...>
2012/11/01
Hi,
[#48713] Re: [ANN] 2.0.0 feature freeze
— Yusuke Endoh <mame@...>
2012/11/01
AFAIK matz has not accepted #6636 completely yet.
[#48797] Re: [ANN] 2.0.0 feature freeze
— Clay Trump <clay.trump@...>
2012/11/03
Sorry, late to the party, but what's the status of #6679?
[#48798] Re: [ANN] 2.0.0 feature freeze
— =?KOI8-R?B?4NLJyiDzz8vPzM/X?= <funny.falcon@...>
2012/11/03
What status of #6638 <https://bugs.ruby-lang.org/issues/6638>
[#48260] [ruby-trunk - Bug #7214][Open] Ruby 2.0 breaks support for some debugging tools — "banister (john mair)" <jrmair@...>
22 messages
2012/10/25
[#49657] [ruby-trunk - Bug #7214] Ruby 2.0 breaks support for some debugging tools
— "denofevil (Dennis Ushakov)" <dennis.ushakov@...>
2012/11/20
[#48292] [ruby-trunk - Bug #7216][Open] object.c defines clone method for objects that cannot be cloned. — "therevmj (Michael Johnson)" <mj@...>
6 messages
2012/10/26
[#48315] [ruby-trunk - Bug #7220][Open] StringIO#initialize_copy causes aliasing between the objects — "brixen (Brian Ford)" <brixen@...>
13 messages
2012/10/26
[#48475] [ruby-trunk - Feature #3222] Can bignums have singleton class & methods? — "matz (Yukihiro Matsumoto)" <matz@...>
4 messages
2012/10/27
[#48497] Re: [ruby-trunk - Feature #3222] Can bignums have singleton class & methods?
— SASADA Koichi <ko1@...>
2012/10/27
(2012/10/27 23:25), matz (Yukihiro Matsumoto) wrote:
[#48551] [ruby-trunk - Feature #7241][Open] Enumerable#to_h proposal — "nathan.f77 (Nathan Broadbent)" <nathan.f77@...>
23 messages
2012/10/29
[#48587] [ruby-trunk - Feature #7241] Enumerable#to_h proposal
— "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>
2012/10/30
[#48625] Re: [ruby-trunk - Feature #7241] Enumerable#to_h proposal
— Aaron Patterson <tenderlove@...>
2012/10/30
On Tue, Oct 30, 2012 at 07:58:33PM +0900, rosenfeld (Rodrigo Rosenfeld Rosas) wrote:
[#48631] Re: [ruby-trunk - Feature #7241] Enumerable#to_h proposal
— Rodrigo Rosenfeld Rosas <rr.rosas@...>
2012/10/30
Em 30-10-2012 16:23, Aaron Patterson escreveu:
[#48679] [ruby-trunk - Feature #905] Add String.new(fixnum) to preallocate large buffer — "headius (Charles Nutter)" <headius@...>
4 messages
2012/10/31
[ruby-core:48008] [ruby-trunk - Feature #6668] Multiple assignment should not return an Array object
From:
"headius (Charles Nutter)" <headius@...>
Date:
2012-10-15 17:10:41 UTC
List:
ruby-core #48008
Issue #6668 has been updated by headius (Charles Nutter).
Method inlining could help if we do it before handing off to the JVM, since we'd see that masgn result is not used...but that's still pretty far away from reality. The JVM might be able to eliminate the array allocation, but it's a very complicated operation and it will be difficult to see that it is zero-sum.
----------------------------------------
Feature #6668: Multiple assignment should not return an Array object
https://bugs.ruby-lang.org/issues/6668#change-30787
Author: headius (Charles Nutter)
Status: Rejected
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category:
Target version:
Currently, when doing multiple assignment, the entire expression must return the right-hand side as an array.
system ~ $ ruby -e "ret = (a, b, c = 1, 2, 3); p ret"
[1, 2, 3]
This is an artifact of MRI's implementation, since multiple assignment was traditionally implemented by taking the array node on the right-hand side, standing it up as a full Ruby Array, and then peeling elements off for assignment on the left-hand side. It is also a performance issue, since it requires constructing the RHS array even when it is never used (unless you are able to do various compiler tricks). I propose removing it.
Justification:
* The feature is rarely used; most people don't even know it exists.
* The impact of creating the RHS array is significant; JRuby can optimize it away in cases where the line is not used as an expression, and the performance difference is huge: https://gist.github.com/3019255
* It is counter-intuitive to have an automatic performance hit just from grouping assignments. "a,b = 1,2" should have the exact same performance as "a = 1; b = 2"
Note that while JRuby can eliminate the array creation in non-expression cases, those are somewhat rare since many times masgn is used at the end of a method body, as for initializers:
class Foo
def initialize(a, b, c)
@a, @b, @c = a, b, c
end
end
JRuby and other implementations may get smart enough in our optimizers to eliminate the array in all cases where it's not needed, but this is a very large burden on the optimization subsystem. It may also not be possible to do in all cases (or not possible to do in even a majority of cases).
Multiple assignment should not return RHS as an array. I do not care what it returns.
--
http://bugs.ruby-lang.org/